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Date: Wed, 1 Feb 2023 10:22:19 +0800 (CST) From: <ye.xingchen@....com.cn> To: <clm@...com> Cc: <josef@...icpanda.com>, <dsterba@...e.com>, <linux-btrfs@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: [PATCH] Btrfs: fix compile error about uninitialized variable From: Minghao Chi <chi.minghao@....com.cn> fs/btrfs/tree-log.c:6166:6: note: 'last_range_start' was declared here fs/btrfs/volumes.c:2598:27: note: 'seed_devices' was declared here fs/btrfs/send.c:1909:13: error: 'right_gen' may be used uninitialized in this function [-Werror=maybe-uninitialized] Signed-off-by: Minghao Chi <chi.minghao@....com.cn> Signed-off-by: ye xingchen <ye.xingchen@....com.cn> --- fs/btrfs/send.c | 2 +- fs/btrfs/tree-log.c | 2 +- fs/btrfs/volumes.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index c3146ce84156..3c9f2d30065d 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -1875,7 +1875,7 @@ static int get_cur_inode_state(struct send_ctx *sctx, u64 ino, u64 gen, int left_ret; int right_ret; u64 left_gen; - u64 right_gen; + u64 right_gen = 0; struct btrfs_inode_info info; ret = get_inode_info(sctx->send_root, ino, &info); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 200cea6e49e5..b91fa398b814 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -6163,7 +6163,7 @@ static int log_delayed_deletions_incremental(struct btrfs_trans_handle *trans, { struct btrfs_root *log = inode->root->log_root; const struct btrfs_delayed_item *curr; - u64 last_range_start; + u64 last_range_start = 0; u64 last_range_end = 0; struct btrfs_key key; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 83cb2db43779..1298569cf8b5 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2595,7 +2595,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path struct block_device *bdev; struct super_block *sb = fs_info->sb; struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; - struct btrfs_fs_devices *seed_devices; + struct btrfs_fs_devices *seed_devices = NULL; u64 orig_super_total_bytes; u64 orig_super_num_devices; int ret = 0; -- 2.25.1
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